methyl 4-aminooxane-3-carboxylate

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 0.5 g (2.79 mmol) of 4-amino-tetrahydro-pyran-3-carboxylic acid methyl ester [WO 01/70673, Example 207] and 4-(2-methyl-quinolin-4-ylmethoxy)-benzenesulfonyl chloride hydrochloride (1.0 g, 2.94 mmol) in N,N-dimethylformamide (10 mL) was added N,N-diisopropylethylamine (1.02 mL, 5.88 mmol) at 0° C. The solution was allowed to warm to 25° C. over 19 h. The DMF was removed in vacuo and the resulting solid was partitioned between ethyl acetate (100 mL) and water (30 mL). The aqueous layer was washed with ethyl acetate (2×50 mL). ). The organic layer was dried over MgSO4, filtered and concentrated to obtain a crude oil (1.48 g). The crude product was purified by Biotage Flash 40M chromatography, eluting with 1:4 ethyl acetate-hexanes, to afford 4-[4-(2-methyl-quinolin-4-ylmethoxy)-benzenesulfonylamino]-tetrahydro-pyran-3-carboxylic acid methyl ester as a white solid (1.08 g, 78%). MS: 471 (M+H)+ The DMF was removed in vacuo the resulting solid was partitioned between ethyl acetate (100 mL) and water (30 mL) The aqueous layer was washed with ethyl acetate (2×50 mL) The organic layer was dried over MgSO4 filtered concentrated to obtain a crude oil (1.48 g) The crude product was purified by Biotage Flash 40M chromatography eluting with 1:4 ethyl acetate-hexanes

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 0.5 g (2.79 mmol) of 4-amino-tetrahydro-pyran-3-carboxylic acid methyl ester [WO 01/70673, Example 207] and 4-(2-methyl-quinolin-4-ylmethoxy)-benzenesulfonyl chloride hydrochloride (1.0 g, 2.94 mmol) in N,N-dimethylformamide (10 mL) was added N,N-diisopropylethylamine (1.02 mL, 5.88 mmol) at 0° C. The solution was allowed to warm to 25° C. over 19 h. The DMF was removed in vacuo and the resulting solid was partitioned between ethyl acetate (100 mL) and water (30 mL). The aqueous layer was washed with ethyl acetate (2×50 mL). ). The organic layer was dried over MgSO4, filtered and concentrated to obtain a crude oil (1.48 g). The crude product was purified by Biotage Flash 40M chromatography, eluting with 1:4 ethyl acetate-hexanes, to afford 4-[4-(2-methyl-quinolin-4-ylmethoxy)-benzenesulfonylamino]-tetrahydro-pyran-3-carboxylic acid methyl ester as a white solid (1.08 g, 78%). MS: 471 (M+H)+ The DMF was removed in vacuo the resulting solid was partitioned between ethyl acetate (100 mL) and water (30 mL) The aqueous layer was washed with ethyl acetate (2×50 mL) The organic layer was dried over MgSO4 filtered concentrated to obtain a crude oil (1.48 g) The crude product was purified by Biotage Flash 40M chromatography eluting with 1:4 ethyl acetate-hexanes

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 0.5 g (2.79 mmol) of 4-amino-tetrahydro-pyran-3-carboxylic acid methyl ester [WO 01/70673, Example 207] and 4-(2-methyl-quinolin-4-ylmethoxy)-benzenesulfonyl chloride hydrochloride (1.0 g, 2.94 mmol) in N,N-dimethylformamide (10 mL) was added N,N-diisopropylethylamine (1.02 mL, 5.88 mmol) at 0° C. The solution was allowed to warm to 25° C. over 19 h. The DMF was removed in vacuo and the resulting solid was partitioned between ethyl acetate (100 mL) and water (30 mL). The aqueous layer was washed with ethyl acetate (2×50 mL). ). The organic layer was dried over MgSO4, filtered and concentrated to obtain a crude oil (1.48 g). The crude product was purified by Biotage Flash 40M chromatography, eluting with 1:4 ethyl acetate-hexanes, to afford 4-[4-(2-methyl-quinolin-4-ylmethoxy)-benzenesulfonylamino]-tetrahydro-pyran-3-carboxylic acid methyl ester as a white solid (1.08 g, 78%). MS: 471 (M+H)+ The DMF was removed in vacuo the resulting solid was partitioned between ethyl acetate (100 mL) and water (30 mL) The aqueous layer was washed with ethyl acetate (2×50 mL) The organic layer was dried over MgSO4 filtered concentrated to obtain a crude oil (1.48 g) The crude product was purified by Biotage Flash 40M chromatography eluting with 1:4 ethyl acetate-hexanes